Updated 2026-08-12
Samsung dishwasher error codes
Samsung dishwashers in GTA kitchens stop on 4C, 5C, and OC more than any other codes. 4C is usually supply. 5C is drain. OC is too much water. Clear the obvious blockage, then stop cycling the machine if the code repeats — a stuck inlet valve will overflow a cabinet.
| Code | Meaning | Cause | What to do |
|---|---|---|---|
| 0C / OC / OE / oE | Water overflow | Too much water in the tub. Drain hose, sink connection, filter, or pump blocked — or a failed inlet valve / board. | Clear the drain path and filter. If it overfills again, shut the water and book service. |
| 1E / IE | Clogged filter | Water is not passing the filter at the bottom of the tub. | Clean the filter. If 1E remains, the sump or pump is still restricted. |
| 3E | High temperature | Water hotter than the control allows (about 175°F), or a bad temperature sensor. | Confirm the cycle is not set abnormally high. If 3E repeats, the sensor is tested. |
| 4C / 4E | Water supply | Minutes into the cycle, no water is entering. Closed valve, clogged inlet screen, or a failed inlet valve. | Open the supply fully. Check the valve screen for sediment. Replace the inlet valve if the screen is clear. |
| 5C / 5E / SE | Not draining | Slow or no drain. Clog in the sink connection, hose, filter, or sump pump. | Clean those points. A dead drain pump is a same-day replacement when the part is on the truck. |
| 9E | Low water | The tub is not level, wiring is loose, or a sensor / harness failed. Standing water in bowls can also fool the sensor. | Level the dishwasher. Empty bowls that held water. If 9E stays, the sensor circuit is diagnosed. |
| HE1 | Thermistor / overheat | Water above about 176°F. Heat relay stuck on the board, or a defective thermistor. | Stop the cycle. This is a parts diagnosis, not a filter-clean. |
| LC / LE / flashing Heavy | Water leak | Leak at hoses, pump, or tub. The leak tray sensor tripped. | Inspect hoses and the pump. Do not restart until the leak is found. |
Still throwing the code? Dishwasher repair.
Frequently asked questions
Need help with an appliance today?
Call us or send the form. Our team books evenings and weekends across Toronto and the GTA.